Super energy efficient,
healthy homes & buildings.
We teach everyone who touches a home or building how to make it more energy efficient, healthier, more comfortable, and built to last.
Welcome to Carbonless.
Building to code is the starting point. It doesn't have to be the finish line.
A home or building can be designed to use far less energy, cost less to operate, be healthier and more comfortable, and last for generations.
That starts with getting the building itself right — the walls, roof, foundation, windows, doors, air control, moisture control and thermal control.
Carbonless exists to teach you how.
We educate homeowners, tradespeople, builders, designers, inspectors and other professionals about creating super energy efficient, healthy homes and buildings.
Use less energy. Lower your utility bills. Live healthier. Build it to last.
Our Mission
Affordable Housing matters. Affordable Living matters more.
Carbonless teaches people how to create buildings that use less energy, cost less to operate, manage moisture, improve comfort, and are built to last.
We educate everyone who touches a building — from the landowner before the first shovel hits the ground to the person living in it 100 years from now.
Carbonless 2126
Forty sticks that follow a building from the dirt to the person who lives in it a hundred years from now. Land, money, design, the build, testing, and the people at every seat at the table.
One construction mistake can cost more than your entire education. Each stick ends with a test and a record of completion you may be able to self-report for continuing education where your board allows it.
The Field Guides
Real buildings, real photographs, in the order the work happens.
How to Build a Super Energy Efficient and Healthy Home Field Guide
How Brian built his own house, stage by stage, with more than 150 construction photographs. For new construction.
The Retrofit & Remodel Field Guide — The Nightmare
Nearly 200 field photographs from more than 25 real projects. Find out what the building is telling you before you open a wall.
Learn It Your Way
Listen in the truck, look it up on the job.
Super Energy Efficient Building Audio Course
14 narrated modules on how a building really works: heat, air, moisture, walls, roofs, windows and HVAC, in plain English. Lifetime access.
Wall and Roof Assembly Library
867 verified whole-wall R and U values for walls, roofs and rim joists. 2x4 and 2x6, 16 and 24 inch on center, metal studs, every common insulation. U.S., Canadian and European values.
Start Here
Not ready for a field guide? Start small and buy what you can afford.
THE BOX
The Playbook + Checklist. The big picture before you build, remodel, retrofit, or start fixing a problem.
Retrofit & Remodeling Guide, Second Edition
For people working on real houses. Not perfect ones. Not new ones. Not houses on paper.
How to Make a Thermal Break on the Inside of Your Home
Go deeper into the actual method for an existing home.
A PRACTICAL GUIDE TO BUILDING SMARTER, MORE EFFICIENT, AND SUSTAINABLE STRUCTURES.
“The book explores sustainable living through the concept of "thermal living," focusing on energy efficiency and reducing reliance on fossil fuels. Iverson offers practical solutions and encourages a mindset shift towards more environmentally conscious choices. The book is accessible, blending science and real-world examples to show how we can live in better harmony with the planet. Overall, it's a timely and engaging read for anyone interested in sustainability and the future of energy. Highly recommend this book!”
Consulting with Brian
Talk your building through with Brian before you spend the money. Bring your plans, your questions, or your problem.
Hammerdahl™
Thanksgiving, 2126. The whole town is coming to the table. A Brian "Bapa" Iverson original novel. Book One. Hardcover and paperback available now.
Get Your Copy